I got a full refund for the Stadia games and hardware - which I got to keep (free 4k Chromecast and Bluetooth controller!). The shutdown of Stadia could not have been handled better - if Google handled all their other service sunsets like they did with Stadia, I'd be more inclined to take a risk with Google.
Packing a controller and a Chromecast was the epitome of traveling light, and served me very well when I had to travel a lot for work. I could resume my games on hotel room TVs, or even on an underpowered laptop. Stadia's UX was frictionless - the couple of times I tried Nvidia's streaming, it felt a lot clunkier
Well - life got in the way so he never actually got to play the game much but Google did refund our Stadia/Chromecast purchase so we got a Chromecast out of it at least.
I remember reading a comment from a dev of one of the Stadia exclusives here who was very upset to learn that their work moot after it was announced here; can't imagine how deflating that must have felt for them.
Literally months of effort and a six figure advance sum, and Google didn't even bother with an extremely obvious checkbox.